Carbureter.



T. H. VAN BURBN.

GARBURBTER.

APPLICATION FILED FEB. 5, 1909.

Patented Mar. 15, 1910 OOO OQO DDU 009909000000 uoooooooood OGDGGU000000000 GOOOGGGOD.

000Go@ oo,

E 0 DBDM UNITED sTATEs PATENT oEEicEi.

THOMAS H. VAN BUREN, F GRAND JUNCTION, COLORADI, ASSIGNOR 0F ONE-.FOUFJTTO CICERO G. SMITH, OF PALISADE, COLORADO.

To alt whom 'it may concern:

Be it known that I, THOMAS H. VAN BU- REN, a citizen of the UnitedStates, residing at Grand Junction, in the county of Mesa and State ofColorado, have invented a new and useful Carbureter, of which thefollowing is a specification.

This invention relates to that type of carbureters for internalcombustion engines characterized by a rotary screen which dips into theliquid hydrocarbon, and carries the same past an air intake where-it isvaporized, and then sucked into the cylinder of the engine With whichthe apparatus is used. 011e of the objections of this type ofcarbureters is that when the engine is running fast, the screen travelsso fast as to carry almost a wave of hydrocarbon around with it, and theobject of the present invention is to -overcome this defect, which isaccomplished by the hereinafter described structure.

The invention also has for its object-to provide means whereby thescreen may be manually rotated when the engine is not running, in orderthat a fuel-laden portion may be brought into position before the ino fthe carburetei'.

tion on the line 2-2 of Fig. 1. Fig. 3 is a take, ready for the firstsuction stroke of the engine. A' C A further object of the presentinvention is to maintain a fixed iatio of fuel and air,

as well as to provide means for controlling or throttling the charge insuch a manner that the proportionsfof fuel and air remain the saine atall positions of the throttle.

With the foregoing objects in View, the invention consists in a novelconstruction and arrangement of parts to be hereinafter described andclaimed, reference heilig had to the drawing hereto annexed in which-Figure 1 is a longitudinal sectional view Fig. 2 is a vertical sectopplan view.

In the drawings, 5 denotes a cylindrical casing which contains theliquid hydrocarbon, and in Which the screen (3 rotates, the latter beingin the for-m of a cylinder, inounted concentric with respect to thecasing. The screen cylinder is mounted at its ends on the rim ofskeleton wheels 7 and 8, respectively. The wheel 7 is fixed ona shaft 9'mounted in a bearing 10 on the outside of the end wall 1 1 of thecasing. The Wheel 8 is 4mounted on the cylindrical end 12 of a CARBURETER.

Specification of Letters Patent. Patented Fiati. 15, fiiil. 'Applicationfiled February 5, 1909.

Serial No. 476,86.

pipe 1G leading to the cylinder of the engine.

The vaporizing chamber 13 is in the shape of a trough having a roundedbottom, and extending throughout the entire length of the screen. At thewheel 8, the bottom of the trough is below the center of the screenandjit then extends upwardly through said cylinder at an angle orinclination so as to bring its opposite end close to the inner surfaceof the screen adjacent to the wheel 7, as clearly shown in Fig. 1 of.the drawing. The side walls of th'e vaporizing chamber converge as shownin Fig. 2 and extend close to the inner surface of the screen, and mergewith the bottom of the chamber adjacent to the wheel 7, as shown in Fig.2. The chamber is also tapered in the direction of the wheel 7. In thecasing 5, directly opposite the mouth or open top of the vaporizingchamber 13, and extending the entire length thereof, is an air intakeopening 17 from which a pair of walls 18 extend inwardly in thedirection of the screen, said walls stopping close to the outer surfaceof the' screen, di rectly opposite the mouth of the chamber 13, wherebyan air intake is had having a length and width which is the same as themouth f spring 24; coiled aroundthe shaft 9 between a nut 25 thereon,and the gear 21.

Liquid hydrocarbon is supplied to the casing 5 by a pipe 26 extendingthereinto through the opening in the Wall 14 by the Way of thecontracted end 12 yof the chamber 13. This' pipe also passes through anopening in the bottom of the chamber 13:, and communicates with adischarge nozzle 2 7 supported by said chamber. The nogxzle blade orroller El() which extends in the direc tion of the screen (i, and iSheld presed against the inner surface thereof by :i .bring -Sl mountedbetween the blade and a bracket 32 extending from said wall. To the endvalla of the casing Si is pivoted at 3? a blade or roller 3l whichextentie` in the. direction of and is pr .d againet the outer Surface ofthe screen by a spring 35 mmmled between the blade and the cylintlriealwall o' the easing.

'.lhe operation of the carburetor is as fol lows: r1`hrough the gearsil() and 21 the Screen is rotated in the liquid tuel contained in thecasing 5i. Suction is produced in the chamber 13 at each suction Strokeof the engine through the pipe connection lt' with the cylinder thereof,whereby air is drawn through the intake l?, and upon passing throughthat portion of the screen exposed to the intake, the liquid hydrocarboncarried thereon aporized and passes to the engine cylinder .through thepipe 16. The blades; 30 .and Bet remove all of the liquid clinging tothe screen, except that whielris held in the peri'i'oratione thereof,whereby the objection heretofore noted iS entirely overeoine. The screenis preferably made ot' punched :dieet metal which affords a smoothsurface to the blades, Upon disconnecting the gear 21 from the collar23, the screen may be manually rotated, which permits z. yfuel-ladenportion to be broughtinto position before the air intake ready for thefirst suction Stroke of the engine. The gears 20 and 21 are soproportioned that during the interval between each suction stroke of theengine, the Screenl rotates and is advanced aurons just sutliciently tosupply enough fuel for the inta kc .of the particular engine upon Ywhichthe carburetor is used, by reason of which a lixefl ratio of fuel andair is maintained, and by means of the slide 19 the charge admitted tothe engine cylinder controlled or tln'ottled in such a manner that theproportions of fuel and air remain the same at all position olf the,slide 'lhc ai'- iaiigement of the air intake and 1the mixing chamberprevents the air which goes to the engine cyliiulcaI'oiii taking up fuelat any .other-,point than the one/that is intended for this llnirpose.The end wall .lllis removably connected to the cylinder' 5 in order thataccesey to the interior may be had for the purpose of assemblingtheparte contained therein.

-What is elainued i l. ln a carburetor engines, a liquid i'nri l"intake, a rflitatal'il' ig having an air the caemg,

geared to the engine, a clutch for disconnecting` the screen from theengine to permit manual ope 'ation of the sei-een, and a vaporizingchamber behind the Screenl` .aaid chamber opening 4opposite the intake,and comnuniieating with the. engine cylinder.

2. ln a carburetor for internal Combustion engines, a liquid fuel casinghaving an air intake opening, a vaporizing chamber mounted in thecasing. and having an inlet located opposite and in close proxin'iity tothe air intake opening, and a'cylindrical kscreen rotatably mounted inthe easing, and

traveling across the'epace between the air intake opening and the inletof the' Vaporizing chamber, said vaporizing cliaml'ier'being locatedinside the screen, and communicating with the engine cylinder.

l. ln a carburetor for internal combustion engines, a liquid fuel fasinghaving an air intake opening, a vaporizing chamber mounted in thecasing, and having an inlet located opposite and in close proximity tothe air intake opening, a cylindrical Screen rotatably mounted in thecasing, and traveling across the Space between the air intake openingand the inletof the vaporizing chamber', said vaporizing chamber beinglocated inside the screen, and communicating with the engine cylinder,and means for vary ing the area of the air intake opening.

l. 1n a carbureter for internal combustion A engines, a liquid fuelcasing having an air intake, a cylindrical screen rotatably mounted inthe casing and traveling past the air intake in close'proximity thereto,and a Avaporizing chamber inside the Screen extend g ing the entirelength thereof and communieating with the engine cylinder, the sideWalls of the chamber extending in the direction of and stopping oppositethe intake in close proximity to the inner surface of the screen. l

5. In a carbureter for internal combustion engines, a liquid fuel easinghaving an air intake opening, and a Wall surrounding said opening andextending into the' casing, a slide mounted in said Wall for controllingthe area of the opening, a trough mounted) in the easing, and incommunication Wit-litho engine cylinder, the month of the trough beinglocated opposite and in close proximity to the inner edge oftheaforesaid Wall, and

a screen ,rotatably mounted in the casing, and

tion engines, a liquid. fuel easing having a.

bearing at one end, and said easing having an nir intake opening, ashaft mounted in the bearing, a trough mounted in the casing, andhavingat one endeU cylindrical portion mounted in the Weill of theeasing'fopposte the first-mentioned end, and communicating with theengine cylinder, the mouth of the trough being located opposite and inclose proximity to the aforesaid airintake opening, a cylindrical screen'supported et one end by the aforesaid shaft, and' et the othei thebottom of the trough at lie cylindricai portion extending screen, undthen upwardly therefiom, its oppoeite enti extending close to' the innersurface of the screen, and said screen inolosing the trough andtraveling across tween the mouth thereof and the ai? intake opening, und@gearing between the aforeseid sbatte-ncl the engine. f

in testimony that I claim the foiegong as my own, l' have hereto aiiixedmy signa# tuie in the presence of two Witnesses. i

@ESMAS H. VAN HUREN. itneeses:

Ww G. BOYER, i W. VAN BUREN.

end on the cylindrical portion of the trough.

below the eentei of 'the d the vspace be-

